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Short black steel pipe nipple with threaded ends

Value Brand

Value Brand 3/8" MNPT x MNPT Black Welded Steel Pipe Nipple Schedule 40

SKU CH-4X1M-706EW

Schedule 40 black welded steel nipple with MNPT threads on both ends, rated 150 psi at 150 °F and built to ASTM A-733 and A-53 standards

  • Schedule 40 wall rated for 150 psi at 150 °F
  • Black welded steel meets ASTM A-53 Type E Grade A
  • Male NPT threads on both ends per ANSI ASME B1.20.1
  • Manufactured to ASTM A-733 quality standard
  • California Proposition 65 warning for cancer and reproductive harm

Pipe nipple for plumbing systems

This 3/8 inch MNPT pipe nipple connects two female-threaded components in plumbing installations. It suits residential and commercial water, gas or air lines that require a Schedule 40 black welded steel fitting. The nipple meets ASTM A-53 and ASTM A-733 manufacturing standards.

Simple threaded installation

Both ends feature male NPT threads conforming to ANSI ASME B1.20.1 for a secure seal with pipe dope or tape. Installers must tighten joints to the correct torque to prevent leaks; over-tightening can crack the fitting or strip threads. California Proposition 65 warnings apply for chemical exposure during handling.

Pressure and temperature limits

The Schedule 40 rating supports a maximum working pressure of 150 psi at 150 degrees Fahrenheit. Performance drops if the system exceeds this temperature or pressure range. The black steel construction is not corrosion-resistant and requires protection in outdoor or corrosive environments.

Highlights

  • Schedule 40 wall rated for 150 psi at 150 °F
  • Black welded steel meets ASTM A-53 Type E Grade A
  • Male NPT threads on both ends per ANSI ASME B1.20.1
  • Manufactured to ASTM A-733 quality standard
  • California Proposition 65 warning for cancer and reproductive harm

Specifications

BrandZORO SELECT

Questions about this item

How can I confirm the nipple is sealing correctly after threading it in?

Pressurise the line up to 150 psi at 150 °F and check for leaks; the Schedule 40 wall and ANSI ASME B1.20.1 threads are rated for that pressure.

What comes with the nipple and what must I supply?

The nipple itself is supplied ready-threaded MNPT x MNPT; you will need pipe sealant or tape and the mating fittings for your 3/8 in nominal pipe.

Which schedule and material grade should I select for a 150 psi steam line?

Choose the Schedule 40 black welded steel version conforming to ASTM A-53 Type E Grade A and manufactured to ASTM A-733.

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